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SPECIFICTION
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Council Platform vs Isomer

Council Platform

councilplatform.com

Isomer

isomer.gov.sg

Side by side

FigureCouncil PlatformIsomer
Price from£200/moFree
Free plan—Yes
Free trial——
Open source—Yes
WebYesYes
Plans published91
Spec score · Government Website Builders8.4 (#3)8.3 (#5)
AccessibilityThe maker describes sites as accessible from the outset and provides free accessibility scans to subscribers.The product uses accessibility-focused templates and prompts editors to complete essential accessibility fields.
DocumentationDocumentation is described as searchable online material updated as features are created or expanded and as users provide feedback.The Help Center is organised into 37 migration articles, 44 Isomer Next guide articles and 10 new-feature articles.
IntegrationsThe procurement document lists Bartec, ModernGov, Elgin Roadworks, Council Advertising Network, Microsoft Azure Chatbots, Google Analytics, SiteImprove and ReciteMe integrations.Classic Isomer supports whitelisted embeds including VICA, YouTube, Vimeo, FormSG, Data.gov.sg graphs and CheckFirst.
PurposeCouncil Platform is an online service for running local government CMS websites.Isomer is a free website builder for government agencies to create and launch static websites without coding expertise.
SecurityThe homepage lists two-factor authentication, minimum password complexity requirements, and automatic logout.Isomer centrally manages security testing and audits, including vulnerability assessment and penetration testing, for hosted sites.
What it doesCouncil Platform is an online service for running local-government CMS websites.Isomer is a static website builder for Singapore government agencies that provides managed hosting while agencies manage site content.

Plans

Council Platform

  • Up to 5000 monthly page views£200 a month
  • 5001 to 15000 monthly page views£400 a month
  • 15001 to 50000 monthly page views£800 a month
  • 50001 to 100000 monthly page views£1,200 a month
  • 100001 to 150000 monthly page views£1,650 a month
  • 150001 to 300000 monthly page views£1,950 a month
  • 300001 to 500000 monthly page views£2,250 a month
  • 500001 to 800000 monthly page views£2,700 a month
  • 800001 and over monthly page views£3,600 a month

Council Platform pricing →

Isomer

  • IsomerFree

Isomer pricing →

In their own words

Council Platform

Council Platform is a web service for running local government CMS websites. Its drag-and-drop editor lets teams create complex pages without developer time, with a customisable front end based on the GOV.UK Design System. Features include service directories, news, event calendars, global search, CRM functions, forms, and editorial workflows. The platform supports manual and machine translation for bilingual sites, plus multi-site publishing and document management. The maker describes sites as accessible from the outset and says subscribers receive free accessibility audit scans. Listed integrations include Bartec, ModernGov, Elgin Roadworks, Council Advertising Network, Microsoft Azure Chatbots, Google Analytics, SiteImprove, and ReciteMe. Security provisions include two-factor authentication, password complexity requirements, and automatic logout. Subscriptions include production and test hosting, support, documentation, uptime monitoring, security updates, and a 99.9% uptime SLA. Pricing is based on monthly page views: the plan up to 5,000 page views costs £200 monthly licence fee (ex VAT), while the 5,001–15,000 tier costs £400 monthly licence fee (ex VAT). Plans above 100,000 monthly page views add features including microsites, cookie-less analytics, accessibility auditing, and PDF conversion.

Visit councilplatform.com

Isomer

Isomer is a free website builder for Singapore government agencies and public healthcare institutions to create static websites without coding. Its Isomer Studio editor lets public officers build, edit, and publish pages with drag-and-drop controls. Publishing supports review requests, approvals, and release of approved changes. Agencies can select page layouts, combine components, and customize colours, logos, and favicons.

Accessibility prompts cover essential fields, while templates and components are designed to support accessible sites. SEO features include predefined headings, generated tables of contents and folder index pages, image alt text, and customizable meta descriptions. Open Government Products builds and manages Isomer. Its team handles hosting, maintenance, support, and compliance with relevant IM8 and Digital Service Standards clauses, and centrally manages security testing and audits. Isomer does not provide website design services or custom layouts. Domain costs and third-party services such as web monitoring may be extra.

Visit isomer.gov.sg